At a glance
| EBITDA range | $3M to $15M S2 |
|---|---|
| Revenue range | $15M to $200M S2 |
| Check size | $5M to $50M S2 |
| Deal types | Platform, Add-on, Growth S2 |
| Geography | US, Canada S2 |
| Sectors | Industrial & Manufacturing, Distribution, Environmental & Waste |
What Hamilton Robinson Capital Partners buys
Hamilton Robinson Capital Partners is a Stamford, Connecticut firm that has bought lower middle market companies since 1984. It looks for niche leaders in highly engineered manufacturing, value-added industrial distribution and B2B services, a list that includes environmental and infrastructure services, testing and measurement equipment, factory automation and material handling. Its criteria call for $15 million to $200 million of revenue and $3 million to $15 million of EBITDA, with $5 million to $50 million of equity per deal, for companies based in the US or Canada.
It invests for control, prefers to be a company's first institutional owner, keeps debt modest and spreads equity widely among managers. Typical deals are family ownership transitions, management buyouts, recapitalizations, corporate carve-outs and ESOP replacements. Its two newest platforms are Rohner Finishing Systems, bought in 2025, and SWECO, carved out of a corporate parent in 2026. Add-ons of any size are welcome, so a smaller company can sell to a current holding; Rohner, Sani-Matic, SWECO and Zone 4 are all marked as seeking add-ons.
Recent deals
Announced in the 24 months before October 26, 2026.
| Date | Company | Type | Sector | Source |
|---|---|---|---|---|
| Apr 2026 | SWECOCarve-out of the Florence, Kentucky maker of vibratory separation and size reduction equipment from a corporate parent | Platform | Industrial & Manufacturing | Source |
| Oct 2025 | Rohner Finishing SystemsVancouver, Washington maker of industrial paint booths, curing ovens and finishing systems | Platform | Industrial & Manufacturing | Source |
Portfolio by sector
From the firm's portfolio page S5.
Automation & Productivity
- Zone 4
Automation & Productivity / Engineered Products
- Sani-Matic
Regulatory & Compliance
- WorkforceQA
Technical Services & Aftermarket
- Signal Control Products
Technical Services & Aftermarket / Engineered Products
- SWECO
- Rohner Finishing Systems
Past investments: American Roller Company, PNE Corporation, Custom Engineered Wheels, Tanknology, GrayMatter
Greymont’s take
How Hamilton Robinson Capital Partners fits a seller
Hamilton Robinson suits a family owner of a niche manufacturer, industrial distributor or technical services business with $3 million to $15 million of EBITDA who wants a full or majority sale, often for succession or estate planning. The firm offers liquidity with an option to reinvest, and it pushes ownership deep into management, so key employees may end up as shareholders. Management usually stays: when it bought Zone 4, the firm said the existing team would keep running the company and more managers joined the ownership group.
Its holds can be long. It owned American Roller from 2019 and backed six add-ons there before the company moved to its realized list. Owners should ask how long the firm plans to hold, how much equity it expects them to roll, and whether an environmental services business would be a new platform, since it has no current company in that field.
Questions owners ask
What size company does Hamilton Robinson buy?
Its investment criteria call for $15 million to $200 million of revenue and $3 million to $15 million of EBITDA, with equity checks of $5 million to $50 million. Add-ons can be any size.
Does Hamilton Robinson buy environmental services companies?
Environmental and infrastructure services is one of its listed focus areas. It has owned Tanknology, a fuel tank testing and compliance firm, and PNE, an industrial cleaning and remediation company, though both are now listed as realized.
What kinds of transactions does Hamilton Robinson do?
Its criteria list family business ownership transitions, management buyouts, majority recapitalizations or full sales, corporate divestitures, ESOP replacements, growth capital and joint ventures. SWECO, bought in April 2026, was a carve-out from a corporate parent.
Sources
- S1Hamilton Robinson Capital Partners home page Accessed October 26, 2026
- S2Hamilton Robinson: Investment Criteria Accessed October 26, 2026
- S3Hamilton Robinson: Strategic Focus Accessed October 26, 2026
- S4Hamilton Robinson: Value-Added Approach Accessed October 26, 2026
- S5Hamilton Robinson: Investments (current and realized) Accessed October 26, 2026
- S6Hamilton Robinson Finishes Strong With Acquisition of Rohner (October 23, 2025) Accessed October 26, 2026
- S7Hamilton Robinson Separates from the Pack with Acquisition of SWECO (April 30, 2026) Accessed October 26, 2026
- S8Hamilton Robinson portfolio: Zone 4 Accessed October 26, 2026
- S9American Roller Executes on Sixth Acquisition (September 5, 2024) Accessed October 26, 2026
- S10Hamilton Robinson portfolio: PNE Corporation Accessed October 26, 2026
- S11Hamilton Robinson portfolio: Tanknology Accessed October 26, 2026
- S12Hamilton Robinson: News & Insights Accessed October 26, 2026
Compiled by Greymont Advisors from public sources, including the firm’s own website and press releases. Greymont is not affiliated with Hamilton Robinson Capital Partners. Figures are as reported on the dates shown and may have changed. Request a correction